Experimental Validation of an Identification Procedure of Soil Profile Characteristics from Free Field Acceleration Records
| العنوان: | Experimental Validation of an Identification Procedure of Soil Profile Characteristics from Free Field Acceleration Records |
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| المؤلفون: | Ramdane Bahar, Zamila Harichane, Hamid Afra |
| المصدر: | International Journal of Geotechnical Earthquake Engineering. 3:1-17 |
| بيانات النشر: | IGI Global, 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | geography, Damping ratio, geography.geographical_feature_category, Bedrock, System identification, Experimental data, Soil science, Geotechnical Engineering and Engineering Geology, Free field, Physics::Geophysics, Free surface, Soil horizon, Parameter, Geotechnical engineering, Geology |
| الوصف: | In this paper, a new approach for soil profile characterization is validated. The soil characteristics are calculated by fitting the theoretical amplification functions to those obtained experimentally. The identified characteristics have been observed to agree well with those obtained by in situ and laboratory tests. This new approach uses system identification theory and free field records. It is based on formulation of theoretical soil amplification function for two sites in terms of the different parameters of the soil profile layers (thickness, damping ratio, shear wave velocity and unit weight). The theoretical function is smoothed according to the experimental data (spectral ratios) by means of the least squares minimization technique. The function parameters are determined by solving, numerically, a non linear optimization problem. In this approach, soil profile characteristics of two sites can be identified simultaneously, from only a single soil acceleration record at free surface of each site without need of bedrock or outcropping acceleration records. Strong ground motions data recorded during the Boumerdes earthquake (Algeria) of May 21, 2003, are used for the validation. |
| تدمد: | 1947-8496 1947-8488 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::888737068c67c6edade500bf79237aea https://doi.org/10.4018/jgee.2012010101 |
| رقم الأكسشن: | edsair.doi...........888737068c67c6edade500bf79237aea |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19478496 19478488 |
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